03-02-2026 20:44
Zetti MarioWhen I first saw this white mould on an Agaricus s
18-08-2025 15:07
Lothar Krieglsteiner
.. 20.7.25, in subarctic habital. The liverwort i
02-02-2026 21:46
Margot en Geert VullingsOn a barkless poplar branch, we found hairy discs
02-02-2026 14:55
Andgelo Mombert
Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome
02-02-2026 14:33
Andgelo Mombert
Bonjour,Sur le thalle de Peltigera praetextata, ne
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
02-02-2026 09:29
Bernard CLESSE
Bonjour à toutes et tous,Pour cette récolte de 2
01-02-2026 19:29
Nicolas Suberbielle
Bonjour, Marie-Rose D'Angelo (Société Mycologiq
31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
once again I find myself in trouble with determination.
These ascos are about 0,2 mm wide.
The spores are about 12-20x2,5-3 and contain few small droplets.
The asci are about 50-60x5-6.
Hairs are hyaline, septate and microphotos once again horrible.
Marja
Hi Marja,
Very nice !
Look at the genus Lasionectria.
Alain
Did you test KOH ?
Are ascospores striate ?
If ascospores are striate, your fungus is perhaps close to L. sylvana.
Alain
thank you!
How interesting, I've never found a Lasionectria before.
I'll do some more studies later. Hope to get better photos then.
Just that my microscope is useful only up to 500x.
Marja
KOH did not affect the hairs.
The asci may be wider, up to 8.
The spore ornamentation do not show in my microscope, but some spores had developed a septum in KOH.
I'd like to get some litterature about xyzNectrias and Cosmosporas etc,
Any recommendations?
Marja
it would be great if you could send me your specimens.
Best regards
Christian